We do not collect or store any information. Your multiplayer ID is randomly generated every time you use the app. Video chat and remote play are completely peer-to-peer, meaning that your video, audio, and game data are sent directly from you to your friend and vice-versa. It never passes through any systems controlled by the author.
A service called PeerJS helps to establish the peer-to-peer connection with your friend, but does not handle any audio, video, or game data. You may also wish to refer to the PeerJS privacy policy.